package thread.commucation;

import java.util.concurrent.ThreadPoolExecutor;

//测试生产者消费者2.信号灯法，标志位解决
public class TestPC2 {

    public static void main(String[] args) {
        TV tv = new TV();
        new Player(tv).start();
        new Watcher(tv).start();
    }
}

//生产者-》演员
class Player extends Thread{

    TV tv = new TV();
    public Player(TV tv){
        this.tv = tv;
    }

    @Override
    public void run() {
        for (int i = 0; i < 20; i++) {
            if(i%2 == 0){
                this.tv.play("快乐大本营播放中");
            }else {
                this.tv.play("记录美好生活");
            }
        }
    }

}

//消费者-》观众
class Watcher extends Thread{
    TV tv = new TV();
    public Watcher(TV tv){
        this.tv = tv;
    }

    @Override
    public void run() {
        for (int i = 0; i < 20; i++) {
            this.tv.watch();
        }
    }
}

//产品——》TV
class TV{
    //演员表演，观众等待 T
    //观众观看，演员等待 F

    String voice; //表演的节目
    boolean flag = true; //何时表演，何时观看
    //表演
    public synchronized void play(String voice){
        if (!flag){
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

        System.out.println("演员表演了" + voice);

        //通知观众观看
        this.notifyAll();
        this.voice = voice;
        this.flag = !this.flag;
    }
    //观看
    public synchronized void watch(){
        if (flag){ //正在表演，观众等待
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

        System.out.println("观看了" + voice);

        //通知表演
        this.notifyAll();
        this.flag = !this.flag;
    }
}